Improvement in vapor-burning cooking-stoves



O. F. MORRILL Vapor Steve.

I Patented Nov. 24, 1863.

nu-Inn nn i gm Nrrn STATES.

PATENT Fries,

OSCAR F. MORRILL, OF CHELSEA, MASSACHUSETTS.

Specification forming part of Letters Patent No. 10,703, dated November24, 1863.

To all whom it may concern Be it known that I, OSCAR F. MORRILL, acitizen of Chelsea, in the county of Suffolk and State of Massachusetts,have made a new and useful invention havin g reference toaerovaporburners or apparatus for generating heat from a mixture of airand the vapor of a hydrocarbon and I do hereby declare the same to befully described in the following specification and represented in theaccompanying drawings, of which Figure 1 denotes a longitudinal andvertical section of such apparatus. Figs. 2 and 3 are end elevations,and Fig. 4. is a transverse and vertical section,vof it.

In the said drawings, A represents a stand, which consists of a circulardisk or platform or table, a, and a suitable number of legs, I) 1),extending therefrom. Within this stand there is arranged anaerovapor-burner, B, which consists not only of a tube, 0, (open at itslower end,) but of a foraminous plate or wire-gauze diaphragm, d, overwhich there is a perforated chimney, e, which extends upward andconcentricall y through the part a, and rises above it, as shown inFigs. 1 and 4. Raised some distance above the said stand A is areservoir or close vessel, (3, for holding petroleumnaphtha, orcarbon-spirits,or any other liquid easily vaporizable and combustible,the said vessel 0 being supported by a conduit or tube, D, which notonly passes entirely through and extends a short distance above the saidvessel, but also projects downward from it toward the stand A andthrough an insulator or block of wood, E, (or some other suitablenon-conductor of heat,) held in place not only by means of an arm orprojection, F, fastened to and extended from the said stand, but by acap, 00, secured to the arm by screws and nuts. The arm and its capconstitute a clamp for holding the insulator, they or the cap beingprovided with a projection, y, extending from the cap, and over and onthe top of the arm, and clasping the conduit D. Furthermore, a hanger orstirrup, 2, extends downward from the clamp or its cap and receives andsupports the elbow-joint w of the horizontal part D of the conduit. Thesaid horizontal part D of the conduit passes directly over the burnerand through its chimney, and has another elbowjoint, 22, which goesthrough a steadyingfork or notched projection, a, projecting downwardfrom the stand. From the elbow-joint o the conduit passes verticallydownward, and by means of a third elbowjoint, t, it is turnedhorizontally into the lower part of the burner, where it is furnishedwith a jet-tube, 8, provided with an adjustable valve, 1", the wholebeing as shown in Fig. 1. From the elbow t a tenon, q, projects,andenters a corresponding mortise, 19, formed in the connecting-cross 0 ofthe stand. While the hanger prevents the conduit from becoming depressedwhen within the insulator, the notched projection a and the tenon andmortise serve to maintain the conduit in its proper position in otherrespects with regard to the burner. That part of the conduit which iswithin the reservoir is furnished with one or more openings, n, for thepassage of the fluid from the said reservoir, and into the conduit, aswell as for other purposes. The elbowjoint to of the conduit has avalve-seat, m, and also a conical valve, l, which is formed on the lowerpart of a rod, it, placed within the conduit, as shown in Fig. 1. Thisrod has a handwheel, i, on its upper end. The hub of the hand-wheelscrews on the upper part of the conduit and serves as a cap therefor.From the valve-rod, and below its valve, there is a tapering projectionor clearer, h, which goes down through the valve-opening and serves toprevent it from becoming clogged by deposits from the material or fluidof the reservoir while the apparatus may be in use. Furthermore, theburner. or the mixer or tube a of such burner, has a lateral port, 9,provided with a screw-cap or cover, f, the said port bein g so arrangedas to enable a person to readily gain access through it to the top ofthe jet of the conduit for the purpose of clearing it of any matterwhich may collect either on or in 1t.

The principal portions of the abovedescribed apparatusviz., the stand,the burner, the conduit, its valves, and reservoir-are not new, theybeing described in the specifications of some one or more patents whichhave been granted to me. My present invention or improvements areexhibited as applied to such portions, or to parts connected to ornecessarily operating with them.

I have found much difficulty in properly sup porting and adjusting theconduit and preventing it from getting out of place; and, furthermore, Ihave found in practice that deposits collect in the valve-passages, aswell as either on orlin the jet-tube, by which the vapor formed in theconduit by the heat of the burner is discharged into the burner. Toobviate these diliiculties I have added to the aerovapor apparatussundry improvements, as hereinbefore described, and therefore What Iclaim as such and of my invention is as follows-that is to say- 1. Theinsulator-clamp as constructed or provided with the projection '1, andwith the hanger or stirrup z, they being for the purposes as specified.

2. The combination of the clearer h, as above described, with theconduit-valve and its seatpassage.

3. The improved burner, as made or provided with the lateralclearing-port g, and with a cap or cover, f, therefor, the same beingarranged with respect to the jet-tube of the conduit, substantially inmanner and for the purpose as described.

4. The combination of the steadying-fork or notched projection u and thetenon q and its mortise p with the conduit and the supporting-stand.

OSCAR F. MORRILL.

Witnesses:

1%. H. EDDY, F. P. HALE, Jr.

